8474491205 has 4 divisors (see below), whose sum is σ = 10169389452. Its totient is φ = 6779592960.

The previous prime is 8474491199. The next prime is 8474491219. The reversal of 8474491205 is 5021944748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2205335521 + 6269155684 = 46961^2 + 79178^2 .

It is not a de Polignac number, because 8474491205 - 2⁴ = 8474491189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847449116 + ... + 847449125.

It is an arithmetic number, because the mean of its divisors is an integer number (2542347363).

Almost surely, 2^8474491205 is an apocalyptic number.

It is an amenable number.

8474491205 is a deficient number, since it is larger than the sum of its proper divisors (1694898247).

8474491205 is a wasteful number, since it uses less digits than its factorization.

8474491205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694898246.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 8474491205 is about 92056.9997610176. Note that the first 3 decimals coincide. The cubic root of 8474491205 is about 2038.7839738750.

Adding to 8474491205 its sum of digits (44), we get a square (8474491249 = 92057²).

The spelling of 8474491205 in words is "eight billion, four hundred seventy-four million, four hundred ninety-one thousand, two hundred five".